Catholicity

A bonus: Going to Mass in a different place, culture or even language can be a great opportunity to experience the catholicity, the universal nature, of the church in a concrete way.

Due to the influence of the Roman Catholic Church in the west, where the English language itself developed, the words "catholic" and "catholicity" are sometimes used to refer to that church specifically.

This means that most parishes or congregations, unless they have more than one officially signed antimins and multiple priests, can celebrate only one Eucharist per day, in order to express the catholicity of the church by avoiding "private masses".

To all these churches, the claim to catholicity (universality, oneness with the ancient church) is important for multiple doctrinal reasons that have more bearing internally in each church than in their relation to the others, now separated in faith.